Lie symmetries applied to interval integration

J Damers, L Jaulin, S Rohou - Automatica, 2022 - Elsevier
In this paper, we propose a new approach for improving significantly existing guaranteed
integration methods for state equations with uncertain initial conditions. We first find a tube …

Reachability analysis of uncertain nonlinear systems using guaranteed set integration

N Ramdani, N Meslem, Y Candau - IFAC Proceedings Volumes, 2008 - Elsevier
In this paper we show how to compute the reachable space for uncertain nonlinear
continuous dynamical systems by using guaranteed set integration. We introduce two ways …

A hybrid bounding method for computing an over-approximation for the reachable set of uncertain nonlinear systems

N Ramdani, N Meslem… - IEEE Transactions on …, 2009 - ieeexplore.ieee.org
In this paper, we show how to compute an over-approximation for the reachable set of
uncertain nonlinear continuous dynamical systems by using guaranteed set integration. We …

Conservative time discretization: a comparative study

M Forets, C Schilling - International Conference on Integrated Formal …, 2022 - Springer
We present the first review of methods to overapproximate the set of reachable states of
linear time-invariant systems subject to uncertain initial states and input signals for short time …

State estimation by interval analysis for a nonlinear differential aerospace model

P Ribot, C Jauberthie… - 2007 European Control …, 2007 - ieeexplore.ieee.org
This paper deals with guaranteed state estimation in a bounded-error context for an
aerospace model. Perturbations are assumed bounded but otherwise unknown. The main …

Evolution function based reach-avoid verification for time-varying systems with disturbances

R Hu, K Liu, Z She - ACM Transactions on Embedded Computing …, 2023 - dl.acm.org
In this work, we investigate the reach-avoid problem of a class of time-varying analytic
systems with disturbances described by uncertain parameters. Firstly, by proposing the …

An interval approach to compute invariant sets

T Le Mézo, L Jaulin, B Zerr - IEEE Transactions on Automatic …, 2017 - ieeexplore.ieee.org
This paper proposes an original interval-based method to compute an outer approximation
of all invariant sets (such as limit cycles) of a continuous-time nonlinear dynamic system …

OURS: over-and under-approximating reachable sets for analytic time-invariant differential equations

R Hu, Z She - Journal of Systems Architecture, 2022 - Elsevier
We present OURS, a precision-oriented MATLAB tool for computing Over-and U nder-
approximations of Reachable Sets for analytic time-invariant differential equations. The main …

Extensions of ValEncIA‐IVP for reduction of overestimation, for simulation of differential algebraic systems, and for dynamical optimization

A Rauh, E Auer, J Minisini… - PAMM: Proceedings in …, 2007 - Wiley Online Library
Simulation techniques are commonly used to analyze the influence of uncertainties of initial
conditions and systemparameters on the trajectories of the state variables of dynamical …

Computation of invariant sets via immersion for discrete-time nonlinear systems

Z Wang, RM Jungers, CJ Ong - Automatica, 2023 - Elsevier
In this paper, we propose an approach for computing invariant sets of discrete-time
nonlinear systems by lifting the nonlinear dynamics into a higher dimensional linear model …